Viewing profile — zwegner

You can choose to get text messages instead for ride notifications. I do that and don't get any spam from them. Still get the stupid "try 1 month free trial" popups whenever I book…

They also sent seventeen emails saying I had a new notification on the day I registered (whereas the web portal said I had zero).

There's a method entirely based on group theory, a version of the original computer algorithm created to solve the cube (the Thistlewaite algorithm) simplified for use by a human […

Quite a few jazz tunes have chords here: http://songtrellis.com/changesPage Some of the chord charts are machine readable (available as just plain text), while others are images, b…

> On a modern x86 cpu the ‘xchg’ instruction performs a swap and can do so entirely in the front-end via register renaming. It doesn’t even require a micro-op. This is only true fo…

This maybe isn't what you're referring to, but here's an old Scott Alexander post on this topic, "Epistemic Learned Helplessness": https://web.archive.org/web/20170329000721/http:/…

It's not quite what you're talking about, but this comment is a great HN parody that could provide a lot of ideas: https://news.ycombinator.com/item?id=23003595

Yeah my MoYu also has a face or two that sometimes desync. Really annoying. I have a basic case recognition feature, though no statistics are tracked there yet. I also have some co…

Cubeast looks pretty awesome, but it only works in Chrome, which is a non-starter for me. So a few months back I started my own Python/Qt app, which is roughly similar to Cubeast, …

I think I was a bit lucky, but solved today's (#8) optimally in a minute or two. Pretty cool puzzle, reminds me of this: https://blog.plover.com/math/24-puzzle.html

For a case like that, I'll use rectangular block mode--it's really fast and intuitive, so I'll usually pick that over :s/a/b/g if it's applicable. The whole thing would be somethin…

So an X-shaped straw would have six holes?

The solution partitions the solution space exactly the way I want it to: it was designed for the site this thread is about. Obviously it doesn't work against an arbitrary adversary…

This uses different word lists than Wordle/Adversarial Wordle, but still has a 4-guess optimum, no 3-guess is possible. My solver's found about a thousand so far, here's a good one…

I posted this on Twitter last night, but here's my (purported) proof that 4 guesses is optimal: https://gist.github.com/zwegner/508cc183ab94dd27686a40384783... ...and a bit more ex…

In case anyone is still reading this thread, I think four is now proven optimal. Short explanation: https://mobile.twitter.com/zwegner/status/148011092775217561... ...and my code: …

Four is possible in many ways: aiery canst dolma offal realo tings dampy humph raine scold bulgy ought ureas gilpy cyton conic lutea prosy canid cigar leary ungot camis humph stale…

Ha, looking at the pictures, I thought "that looks just like the records building in the middle of season 3 of Mr. Robot", and it's the same building. BTW this is unrelated to the …

Yeah, I see how the quoting complications make CLMUL pretty hard to use (or just useless). I have a few ideas about how to deal with the quoting/escaping, and if I get some free ti…

Thread's getting a bit old, hope you see this :) Referring to the OP, I'm not sure what exact dialect of csv they're using, but its quoting rules are nothing like Excel's: quotes a…

Good points all around. Not sure what the OP's requirements are, but judging by their current code, CLMUL should do nicely (or they have a bug). And also, thanks for that example. …

CLMUL in general is a bit weird to wrap your head around, but a CLMUL with -1 isn't too tricky: it's like a running 1-bit sum, or in other words, each bit in the result is the pari…

Pretty similar article from very recently: https://nullprogram.com/blog/2021/12/04/ Discussion: https://news.ycombinator.com/item?id=29439403 The article mentions in an addendum (a…

Is the performance difference of PEXT vs. the classic 64-bit magic bitboards actually close to 50%? The very slight latency increase of and/multiply/shift instead of pext should be…